Struct rant::runtime::StackFrame

pub struct StackFrame<I> { /* fields omitted */ }

Represents a call stack frame.

Implementations

impl<I> StackFrame<I>

pub fn pc(&self) -> usize

Gets the Program Counter (PC) for the frame.

pub fn flavor(&self) -> StackFrameFlavor

Gets the flavor of the frame.

pub fn output(&self) -> Option<&OutputWriter>

pub fn origin(&self) -> &Rc<RantProgramInfo>

pub fn debug_pos(&self) -> (usize, usize)

pub fn origin_name(&self) -> &str

pub fn push_intent_front(&mut self, intent: I)

Pushes an intent to the front of the queue so that it is handled next.

pub fn push_intent_back(&mut self, intent: I)

Pushes an intent to the back of the queue so that it is handled last.

pub fn use_output_mut<F: FnOnce(&mut OutputWriter)>(&mut self, func: F)

If the frame has output, runs func on a mutable reference to the output; otherwise, does nothing.

pub fn use_output<'a, F: FnOnce(&'a OutputWriter) -> R, R>(
    &'a self,
    func: F
) -> Option<R>

If the frame has output, runs func on a reference to the output; otherwise, does nothing.

pub fn set_debug_info(&mut self, info: &DebugInfo)

Writes debug information to the current frame to be used in stack trace generation.

impl<I> StackFrame<I>

pub fn write_frag(&mut self, frag: &str)

Writes a fragment to the frame’s output.

pub fn write_ws(&mut self, ws: &str)

Writes a whitespace string to the frame’s output.

pub fn write_value(&mut self, val: RantValue)

Writes a value to the frame’s output.

pub fn into_output(self) -> Option<RantValue>

Consumes the frame’s output and returns the final value generated by it.

Trait Implementations

impl<I> Display for StackFrame<I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.